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Your location: Home > Related Articles > Summary of questions about combers

Summary of questions about combers

Author:QINSUN Released in:2023-06 Click:132

Contents

1 What does comber mean?2 What is comber used for?3 Types of comber4 How comber works?5 Function of comber5. 1 Eliminating fluff 5.2 Eliminating neps and impurities 5.3 Improving fiber separation, straightness and parallelism 6 Comb structure 6.1 Feeding part 6.2 Nipper 6.3 Comb part 6.4 Separating roller

What is what does comber mean?

Before we get into When dealing with the meaning of comber, it is necessary to first define combing. Combing is one of the processes used in the spinning process to eliminate shorter fibers and kinks (neps, hair particles, grass clippings, cocoon skins, etc.) in the fibers. At the same time, the fibers are further straightened and parallelized, resulting in a combined sliver of relatively uniform thickness. The comber is the machine that performs the combing process during the spinning process.

For whatis a comber used?for?

Comber is useful in textile industry, especially for Companies that want to produce high-quality yarns and fabrics. These companies need to produce high-quality yarns and fabrics with high strength, softness, and luster. In addition to the textile industry, combing machines can also be used in other fields that require the separation and processing of impurities, such as: B. Cotton processing in agriculture. In addition, combing machines can be used at some universities and research institutes for teaching and research.

Types of combers

It is classified into two types based on its structure: straight comberand circular comber. The straight comber is currently the most popular. Straight comber is ideal for processing fine and short fibers, and they are characterized by intermittent and periodic combing. In addition, it has a better effect of eliminating impurities, neps, wool and hemp, and lower noil rate and relatively low power.

How combing machine functions?

Holding and combing are the essence of combing, and they can effectively remove short fibers and small impurities, and improve fiber straightening and parallelism. Although there are many different types of straight combers, their basic working principles are that that is, the two ends of the fiber bundles are regularly separated and combined; the cylinder combs the head end and the top comb passively combs the tail end, and the combined fiber bundles are cast into the fiber webMachine separately (drawing) splicing (lapping), and then the fiber web is output outside the machine.

Comber function Exclude Linters

Exclude short fibers shorter than 16mm (or shorter than 12.7mm) to increase the average Length and regularity of cotton fibers, improve yarn uniformity and strength, and reduce yarn hairiness and thickness.

When the noil rate is 12-18%, the manual detection method will eliminate short fibers at a rate of 42% removed. 48%; machine detection removes short fibers at a rate of 40% to 70%.

Remove neps and impurities

Remove neps, smaller impurities and imperfections in the fibers and minimize the amount of neps and impurities on the surface of the yarn to improve the visual quality of the fabric.

With a noil rate of 12-18%, the elimination rate of neps is manual detection10-20%. With a combination noil rate of 15%-19%, the nep removal rate by machine detection is 65%-85%.

Impurities are removed at a rate of 50%-60%.

Improve fiber separation, straightness and Parallelism

Increase the degree of separation, straightness and parallelism of the fibers in tiny rolls to improve the internal quality of the combed sliver and thus increase the strength, uniformity and luster of the yarn.

It can also limit the formation of neps during the drawing process in the subsequent process.

Before combing, raw sliver has a fiber straightness of 55-65%, while combed sliver has a fiber straightness of 90%-95% .

Structure of the comberfeed part

The lap roller and the lap feed roller are the main parts of the feed section, and the surface has thick and narrow grooves. The cotton feed roller is mounted on it LowerTongs, and the tongs swing back and forth once to create a 4-6.5mm thick layer of cotton (commonly called the cotton feed length or feed length). Their purpose is to feed the cotton layer regularly and in quantity.

The jaws are small arches that fit together and there are two upper and two lower pliers. Forward and reverse pivoting of the tong is controlled by the headstock linkage system, and opening and closing of the upper tong is limited by the linkage mechanism. The top nipper has a pressure mechanism and the distance between the plier lip (when closed) and the cylinder comb needle varies with the movement of the pliers, with the narrowest section measuring 0.3–0.5 mm.

Comb part

The The carding mechanism of the comber mainly consists of the combing cylinder and the upper combing mechanism, which is the most important part of the comber and plays a crucial role inr the combing quality plays.

Cylinder

The cylinder consists of a smoothly curved plate (curved plate). ) and a grooved curved plate (also known as a needle plate seat), each making up half of the curved surface of the barrel. 14 to 17 needle plates (about a quarter of the total arcuate surface of the cylinder) are implanted into the slot of the grooved arcuate plate. The needle board is equipped with combing needles, the thickness and density of which vary depending on the type to be spun. The cylinder shaft runs through the entire machine and at the end of the shaft there is an index plate that serves as a scale for all movements of the machine (positioning in time).

The most important carding component of the comber is the cylinder. Its main task is to comb most of the length of the front and middle bundles of fibers from shallow to deep, which makes the fibers more straightened, parallelized and separated, and the hair bundles ecan be removed. Noil is formed by linters, neps and other impurity defects in the fabric.

Top Comb

Top combs are divided into two types: swing combs and fixed combs. They feature a panel construction with rows of needles along the bottom edge. The working width of the row of needles corresponds to the width of the cylinder. Combing needles are usually flat.

The top comb is responsible for combing the beard ends, which are combed through the end of the cylinder. Hold combing also includes combing the beard with the top comb. The needle gap of the top comb goes through, allowing the top comb to comb the tail end of the tuft of hair.

Separation Roller

SeparationIon joining is the process of periodically combining and separating the front and back layers of fibers and continuously outputting webs of cotton . Good connection quality is an effective guarantee of product quality improvement.

If anyone moreIf the comber has any questions, don\'t hesitate to discuss them in the comments section.

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